Color
#12154e
#12154ergb(18, 21, 78)hsl(237, 63%, 19%)oklch(0.238 0.103 273.2)Colors that go with #12154e
Charcoal, Dark Olive Green and Rust lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #12154e: softer than #000 and cool enough to feel like part of the same palette.
Dark Olive Green #556b2f
split-complementshippedDark Olive Green is a split-complement of #12154e: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Rust #b7410e
triadicshippedRust completes a triad with #12154e — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Sea Green #2e8b57
triadicshippedSea Green completes a triad with #12154e — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Steel Blue #4682b4
analogousshippedSteel Blue is #12154e's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Amber #ffbf00
shippedAmber is paired with #12154e in 11 real palettes, including Blueprint and Beach Hut, as the accent.
Blue #0000ff
shipped17 real palettes, including Penpot's brand system and Monzo's brand system put Blue beside #12154e, as the supporting colour.
Blue Violet #8a2be2
shippedBlue Violet is paired with #12154e in 6 real palettes, including ClickUp's brand system and Yahoo's brand system, as the lead colour.
Real palettes that use #12154e
Tints & shades
Harmonies
Contrast
| #12154e as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 16.89:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.24:1 | fail | fail | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #12154e as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Fonts for this mood
#12154e reads as cool, vivid, dark. The font library is tagged with the same vocabulary:
Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
›analyze #12154e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/12154e-9f9cc4-df924e-251f2d-e9edf1?lock=0&style=vibrantWant the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.
Machine-readable: color.md